1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package com.android.car.settings.common; 18 19 import android.support.v7.widget.RecyclerView; 20 import android.text.TextUtils; 21 import android.view.LayoutInflater; 22 import android.view.View; 23 import android.view.ViewGroup; 24 import android.widget.ImageView; 25 import android.widget.TextView; 26 27 import com.android.car.settings.R; 28 29 /** 30 * Contains logic for a line item represents icon and texts of a title and a description. 31 */ 32 public abstract class IconTextLineItem 33 extends TypedPagedListAdapter.LineItem<IconTextLineItem.ViewHolder> { 34 private final CharSequence mTitle; 35 36 private View.OnClickListener mOnClickListener = (v) -> onClick(); 37 IconTextLineItem(CharSequence title)38 public IconTextLineItem(CharSequence title) { 39 mTitle = title; 40 } 41 42 @Override getType()43 public int getType() { 44 return ICON_TEXT_TYPE; 45 } 46 47 @Override bindViewHolder(ViewHolder viewHolder)48 public void bindViewHolder(ViewHolder viewHolder) { 49 viewHolder.titleView.setText(mTitle); 50 setIcon(viewHolder.iconView); 51 CharSequence desc = getDesc(); 52 if (TextUtils.isEmpty(desc)) { 53 viewHolder.descView.setVisibility(View.GONE); 54 } else { 55 viewHolder.descView.setVisibility(View.VISIBLE); 56 viewHolder.descView.setText(desc); 57 } 58 viewHolder.itemView.setOnClickListener(mOnClickListener); 59 viewHolder.rightArrow.setVisibility( 60 isExpandable() ? View.VISIBLE : View.INVISIBLE); 61 viewHolder.dividerLine.setVisibility( 62 isClickable() && isEnabled() ? View.VISIBLE : View.INVISIBLE); 63 } 64 65 public static class ViewHolder extends RecyclerView.ViewHolder { 66 public final TextView titleView; 67 final TextView descView; 68 final ImageView iconView; 69 final ImageView rightArrow; 70 public final View dividerLine; 71 ViewHolder(View view)72 public ViewHolder(View view) { 73 super(view); 74 iconView = (ImageView) view.findViewById(R.id.icon); 75 titleView = (TextView) view.findViewById(R.id.title); 76 descView = (TextView) view.findViewById(R.id.desc); 77 rightArrow = (ImageView) view.findViewById(R.id.right_chevron); 78 dividerLine = view.findViewById(R.id.line_item_divider); 79 } 80 } 81 createViewHolder(ViewGroup parent)82 public static RecyclerView.ViewHolder createViewHolder(ViewGroup parent) { 83 View v = LayoutInflater.from(parent.getContext()) 84 .inflate(R.layout.icon_text_line_item, parent, false); 85 return new ViewHolder(v); 86 } 87 setIcon(ImageView iconView)88 public abstract void setIcon(ImageView iconView); 89 onClick()90 public abstract void onClick(); 91 } 92